action right now. ban the sale of high capacity ammunition clips, close the so-called gun show loophole that does not require background checks in many private sales. and ban the sale of what he called military-style assault weapons. >> if we're going to change things, it's going to take a wave of americans, mothers, daughters, fathers, sons, and yes, gun owners, standing up and saying enough, on behalf of our kids. >> reporter: the white house vaguely defines military-style assault weapons as those that can fire hundreds of rounds in minutes. for perspective, this is an m-16 automatic rifle. it's generally illegal to the public. it can fire continuously. [ gun fire [ with one pull of the trigger, the bullets come nonstop. 30 rounds in two seconds. this gun, an ar-15, is legal and very popular. it looks similar to the m-16 on the outside, but it's semi-automatic.